Sec.16-11-14. Heating value

(a) Each gas company shall file by statement, with the commission, as a part of its schedule of rates or rules and regulations, the heating value of the gas being distributed. The heating value of the gas shall be maintained with as little deviation as practicable; and to this end the average heating value on any one day should not vary by more than five per cent from the monthly average except when a substitute gas is used in accordance with the provisions of subsection (c).

(b) In maintaining the established heating value, the chemical composition and specific gravity shall be such as to attain satisfactory combustion in the customer's appliances at all times without repeated readjustment of the burners.

(c) When supplemental or substitute gas is distributed by a gas company, the gas quality shall be such that the utilization performance, when used as a fuel, will be satisfactory regardless of the heating value of the gas.